P1630

Diagnostic trouble codes

DESCRIPTION

The skid control ECU sends signals such as cruise control cancel demand signals and brake operation demand from ECM response signals to the ECM when the dynamic radar cruise control system is in operation.

DTC No.	DTC Detection Condition	Trouble Area
P1630	While the dynamic radar cruise control is either preparing for operation or operating, if communication data from the skid control ECU is logically inconsistent for a certain amount of time, the ECM records this logical error code	Communication circuit ABS & traction actuator (Skid control ECU) ECM
U0122	While dynamic radar cruise control is either preparing for operation or operating, if communication data from the skid control ECU is invalid for a certain amount of time, the ECM records the communication cut off code	Communication circuit ABS & traction actuator (Skid control ECU) ECM

INSPECTION PROCEDURE

HINT:
: This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

1.CHECK CAN COMMUNICATION SYSTEM

Refer to HOW TO PROCEED WITH TROUBLESHOOTING (see page ).

for LHD: (Click here)

for RHD: (Click here)